在天然氣發(fā)電機(jī)組發(fā)動機(jī)使用前，應(yīng)根據(jù)具體使用的環(huán)境和條件，選用適當(dāng)規(guī)格的天然氣、機(jī)油和冷卻液。選用恰當(dāng)與否，對天然氣發(fā)電機(jī)組的發(fā)動機(jī)的性能和使用壽命有很大的影響

Before using the natural gas generator set engine, appropriate specifications of natural gas, engine oil, and coolant should be selected based on the specific environment and conditions of use. Whether the selection is appropriate or not has a significant impact on the performance and service life of the engine of natural gas generator sets

一.天然氣發(fā)電機(jī)組使用燃?xì)獾囊螅?/p>

1、 Requirements for the use of gas in natural gas generator sets:

燃?xì)獍l(fā)動機(jī)的燃料以天然氣為主，也可以使用油田伴生氣、液化石油氣、沼氣等可燃性氣體。所用的氣體應(yīng)通過干燥脫水，達(dá)到無游離水、原油和輕質(zhì)油，其低熱值不應(yīng)低于31.4mj/m3,總硫含量不大于480mg/m3,硫化氫含量不大于20mg/m3.此外天然氣輸送壓力在0.08－0.30MAP范圍內(nèi)

The fuel for gas engines is mainly natural gas, and combustible gases such as oilfield associated gas, liquefied petroleum gas, and biogas can also be used. The gas used should be dehydrated through drying to achieve no free water, crude oil, and light oil. Its low calorific value should not be less than 31.4mj/m3, total sulfur content should not exceed 480mg/m3, and hydrogen sulfide content should not exceed 20mg/m3. In addition, the natural gas transportation pressure should be within the range of 0.08-0.30MAP

二.天然氣發(fā)電機(jī)組所用的機(jī)油

2、 Oil used in natural gas generator sets

機(jī)油是用來潤滑天然氣發(fā)動機(jī)的運(yùn)動件并對這些運(yùn)動件起到冷卻散熱、帶走雜質(zhì)和防止銹的作用。其品質(zhì)的好壞除對燃?xì)獍l(fā)動機(jī)的性能和使用壽命有影響外，對機(jī)油的使用期限有一定的影響。為此，應(yīng)根據(jù)天然氣發(fā)電機(jī)組燃?xì)獍l(fā)動機(jī)的使用環(huán)境溫度來選適當(dāng)?shù)臋C(jī)油。天然氣發(fā)動機(jī)盡可能使用燃?xì)獍l(fā)動機(jī)專用機(jī)油15W40CD或15W40CC等

Oil is used to lubricate the moving parts of natural gas engines and plays a role in cooling, removing impurities, and preventing rust. The quality not only affects the performance and service life of gas engines, but also has a certain impact on the service life of engine oil. Therefore, the appropriate oil should be selected based on the ambient temperature of the natural gas generator set gas engine. Natural gas engines should use gas engine specific oils such as 15W40CD or 15W40CC as much as possible

三.天然氣發(fā)電機(jī)組使用冷卻液：

3、 Natural gas generator units use coolant:

用于冷卻系統(tǒng)的直接冷卻發(fā)動機(jī)的冷卻液通常使用清潔的淡水，雨水或經(jīng)澄清的河水為宜.當(dāng)天然氣發(fā)動機(jī)在低于0度的環(huán)境條件使用時，應(yīng)嚴(yán)防冷卻液凍結(jié)，致使零件凍裂。可根據(jù)溫度來配用適當(dāng)凝點的防凍液或在起動前加注熱水，但停車后應(yīng)立即放水。

The coolant used for direct cooling engines in the cooling system is usually clean fresh water, rainwater, or clarified river water. When natural gas engines are used in environmental conditions below 0 degrees Celsius, it is necessary to strictly prevent the coolant from freezing, which may cause parts to freeze and crack. Antifreeze with appropriate freezing point can be used according to temperature or hot water can be added before starting, but water should be drained immediately after parking.